HEAT PUMP CYCLE DEVICE

• Main Authors: KONO HIROAKI, KATO YOSHITAKE, ISSHI YOSHINORI, MUTO NAITO, IJUIN YUKIHISA, HIRAYAMA JUNKI, YOKOO YASUHIRO, HAYASHI YOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 18.01.2023
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TRANSPORTING; VEHICLES IN GENERAL; VENTILATING; WEAPONS

To provide a heat pump cycle device that is able to prevent an unnecessary defrosting operation from being executed.SOLUTION: A heat pump cycle device 1 includes: a defrosting operation execution unit that executes a defrosting operation for defrosting a low-temperature side radiator 35 when a frosting determination unit determines that the low-temperature side radiator 35 is covered with frost; and a defrosting operation inhibition unit that inhibits the defrosting operation execution unit from executing the defrosting operation. During the defrosting operation, the defrosting operation execution unit defrosts the low-temperature side radiator 35 by using as a heat source a low-temperature side heat medium heated by a strong electric system device 81 disposed in a low-temperature side heat medium circuit 30. The defrosting operation inhibition unit inhibits execution of the next defrosting operation until a defrosting elapsed time Tm 2, which is an elapsed time from the end of the previous defrosting operation, becomes equal to or longer than a defrosting standby time Tmi 2.SELECTED DRAWING: Figure 13 【課題】不必要な除霜運転が実行されてしまうことを抑制可能なヒートポンプサイクル装置を提供する。【解決手段】ヒートポンプサイクル装置１は、着霜判定部によって低温側ラジエータ３５に着霜が生じたことが判定された際に、低温側ラジエータ３５の除霜を行う除霜運転を実行する除霜運転実行部と、除霜運転実行部が除霜運転を実行することを禁止する除霜運転禁止部と、を備える。除霜運転実行部は、除霜運転時に、低温側熱媒体回路３０に配置された強電系機器８１によって加熱された低温側熱媒体を熱源として低温側ラジエータ３５の除霜を行う。除霜運転禁止部は、前回の除霜運転が終了してからの経過時間である除霜経過時間Ｔｍ２が除霜待機時間Ｔｍｉ２以上となるまで、次の除霜運転の実行を禁止する。【選択図】図１３